Tooth-brush.



GAYNOR- TOOTH BRUSH. APPLIOATION PILEZD we. as, 1911.

Patented Get: 31, 1911 I nvewlf'o'o 5 $1 4; toznm w JOSEPH GAYNOR, OFNEW YORK, N. Y.

TOOTH-BRUSH.

To all whom it may concernf Be it known that I, JsEPH GAYNOR, a citizenof the United States, residing at the city of New York, borough ofManhattan, county and State of New York, have invented a new .andImproved Tooth-Brush, of which the following is a specification.

This invention relates to a toothbrush of novel construction which isrotated while i being moved along the upper or lower row of teeth, andwhich will thus not only thoroughly clean the teeth but willalsoeifectively brush out the interstices.

In the accompanying drawing: Figure I is a side view partly in sectionof a tooth brush embodying my invention; Fig. 2 is a cross section online 22, Fig. 1; Fig. 3 is a cross section on line 33, Fig. l, and Fig.4 a cross section on line 4-4, Fig. 1.

The tooth brush comprises essentially an apertured plate or bearing 10,to opposite ends of which are pivoted at 1l, a pair of handles 12,engaged by a spring 13, that tends to open the handles. is pivotedat 14,an arched an eye or guide 16 at its inner end, the

Specification of Letters Patent.-

, Application filed August 26, 1911.

:i To each handle rack 15,.hav1ng f eye j of one rack engaging the bodyof the other 3 rack. Racks 15 o ntly engage a pinion l7 secured to oneend of a spindle 18 that is ournaled in bearing 10 and held in opei'atire engagement with the racks between eyes 16 by a pair of flanges 1!.

It will be seen that by closing and opening the handles, the I spindle18 will be alternately rotated in opi posite directions. 18 is adaptedto be coupled the stem 1901? a cylindrical brush To the free end ofspindle 20, for which purpose the I spindle is provided with a slittedspring PatentedOct.

31, 1911. Serial No. 646,263.

socket 21, the arms of which may be contracted around the end of thespindle by a screw ring 22. A semi-tubular shield-23 secured to bearing10, encompasses a portion of brush 20 and also extends with its upperrounded end over the outer end thereof, so as to protect the gumsagainst contact therewith.

tion, and then the brush is passed back andforth-over the row of teethto be cleaned,

In use, the device is so held that the spin- During this movement thehandles 12 aremanipulated to rotate. the brush, which will thus duringits horizontal reciprocation sweep vertically over the teeth, to cleanthe same thoroughly and to efiect at the same.

time a thorough brushing out of thecrevices. Whenever a brush is worn,it may be readily removed and replaced bya new one,

f so that the change maybe effected with very little expense.

I claim: A device of the character described, comprising a bearingplate, a pair ot'handles pivoted to opposite ends thereof, a pair ofcurved racks pivoted to the handles, an eye on the inner end of eachrack, adapted to engage the body of the other rack, a spindle oui-naledin the bearing, a pinion on the spindle that is engaged by the racksbetween the eyes and a cylindrical brush secured to the spindle.

, JOSEPI-LGAYNOR.

lVitnesses:

FRANK v. BRIESEN, Airi'iiuie E. ZUMPE.

